From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 4 Sep 2012 12:48:03 +0000 (+0200)
Subject: xhci: allow bytewise capability register reads
X-Git-Tag: v1.3.0-rc0~550^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ee021d41078844df60a3a466e3829a3e82776f3;p=thirdparty%2Fqemu.git

xhci: allow bytewise capability register reads

Some guests need this according to
Alejandro Martinez Ruiz <alex@securiforest.com>

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 567ffb159da..e0ca69044a2 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -2746,8 +2746,10 @@ static void xhci_doorbell_write(void *ptr, target_phys_addr_t reg,
 
 static const MemoryRegionOps xhci_cap_ops = {
     .read = xhci_cap_read,
-    .valid.min_access_size = 4,
+    .valid.min_access_size = 1,
     .valid.max_access_size = 4,
+    .impl.min_access_size = 4,
+    .impl.max_access_size = 4,
     .endianness = DEVICE_LITTLE_ENDIAN,
 };